Mita Industrial Co., Ltd.

Exedy Corporation

G-c Dental Industrial Corp.

Mita Kogyo Kabushiki Kaisha

Hiroshi Kimura

Masahiko Hisajima

Yutaka Shigemura

Kiyoshi Morimoto

Yoichiro Irie

Isao Yada

Takashi Nagashima

Kiyoshi Shibata

Shinobu Satonaka

Seiji Kaminaga

Yasuhiko Yoshikawa

Kiyonori Yamamoto

Masahiro Watashi

Shinsuke Yoshinaga

Toshihiko Yamamoto

Masahiro Hashizume

Masanobu Maeshima

Hiroshi Kubota

Susumu Taniguchi

Hiroshi Ishida

Shigeki Hayashi

Yasushi Takehira

Koichi Yasuda

Osamu Yoshimura

Mitsuya Ishito

Shinichi Noda

Yasuo Hatate

Hiroshi Kobayashi

Tatsuo Aizawa

Shinji Fujimoto

Masuo Kawamoto

Toshikazu Matsui

Hideaki Tsudaka

Haruya Osaka

Takaich Kitagawa

Shoji Yoshikado

A piston (,) is disposed between a front cover and a turbine of a torque converter and is adapted to move in an axial direction in response to changes in the hydraulic fluid pressure. The piston (,) includes a disc-shaped plate portion (,), a flat annular portion (,), and an annular rim portion (,). The flat annular portion (,) is formed at an outer periphery of the disc-shaped plate (,), and is adapted to frictionally engage a portion of the front cover. The annular rim portion (,) is formed on an outer peripheral edge of the flat annular portion (,) and extends axially toward the turbine. The annular rim portion (,) supports the radial outer side of torsion springs disposed on an inner periphery thereof. By forming notches (,) in the annular rim portion (,), the rigidity of the flat annular portion (,) is reduced. Reducing the rigidity of the flat annular portion (,) makes the flat annular portion (,) more flexible so that upon engagement with the front cover, the flat annular portion (,) may more readily conform to the shape of the front cover in the event that the front cover is formed with irregularities or slightly undulating surfaces.

Lock-up piston in a torque converter

To provide a separate hub type damper disc assembly in which a force to be applied to engagement projections is reduced in view of the fatigue service life and a weight of a hub is reduced by reducing a size of the hub while maintaining a satisfactory durability of the hub, the damper disc assembly 1 includes a hub 2, a flange 3, first torsion springs 4, a clutch plate 5 and a retaining plate 6. The hub 2 has a plurality of engagement projections 2c and 2d on its outer circumferential portion. The flange 3 is disposed on the outer circumference of the hub 2 and has, in the inner circumferential portion, engagement cutaway portions 3b and receiving cutaway portions 3c. Engagement cutaway portions are engaged with the engagement projections 2c and 2d through a predetermined gap. The first torsion springs 4 are received in spaces defined by the adjacent engagement projections 2d and the receiving cutaway portions 3c. The clutch plate 5 is connected to the flange 3.

Damper disc assembly

A lever support device for a clutch cover assembly is disclosed, and includes a lever support 16 having a threaded portion 16a at its end portion, a support nut 17 engaged with the threaded portion 16a of the lever support 16 and fitted with the clutch cover 11, a lock plate 18 having an engagement portion 18a engaged with the outer periphery of the support nut 17, at least one oblong mounting aperture 18b in the lock plate 18 which inhibits rotation of the support nut 17, and a fixing member 19 inserted into the mounting aperture 18b in the lock plate 18 with a space 30 for rotation of the lock plate therebetween.

Lever support device for clutch cover assembly

The present invention relates to a pressure plate 12 that is formed with a plurality of protrusions 12a. The amount of the imbalance in the pressure plate 12 is measured, the imbalance is then corrected by machining the protrusions 12a in accordance with the amount of determined imbalance.

Pressure plate preformed with protrusions and method for balancing the

An image-forming machine equipped with a transfer device means of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed and at a greater distance than the thickness of a transfer material from the image forming member. In a transfer zone, the surface of the transfer material is brought into contact with the surface of the image forming member. In a charge supply zone, the transfer material is contacted with the surface of the charge supply member. In the direction of conveyance of the transfer material, the charge supply zone is positioned downstream of the transfer zone.

Image-forming machine with toner image transfer means having a charge

An image-forming machine equipped with a transfer device of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed, and at a greater distance than the thickness of a transfer material from the image forming member. A voltage of a predetermined polarity is applied to the charge supply member. In a transfer zone, the surface of the transfer material is brought into contact with the surface of the image forming member, while the back of the transfer material is not contacted with the surface of the charge supply member.

Image-forming machine with toner image transfer means

A dental chuckless handpiece of the compressed air drive type includes a body having a head in which bearings are attached to the upper and lower portions of a shaft provided with a turbine impeller, and a rotary member fixedly provided to the lower end of the shaft is mounted in place through the upper and lower bearings. At least portions of the body excepting the head is formed of a synthetic resin discriminably colored with a color including transparent color.

Dental chuckless handpiece

A detachable head having therein an air turbine and connecting pipes extending sideways therefrom and a synthetic resin grip provided at its end with a connecting portion having connecting holes into which the connecting pipes of the head are inserted, the dental handpiece having a structure in that a fluid-passage tube formed of a flexible synthetic resin and having a fibrous reinforcing material embedded in its wall is to be connected at its one end with a dental unit body, and passes at least through the synthetic resin grip and is caused to communicate at its other end with the connecting holes in the connecting portion.

Dental handpiece

A copying paper feeding device comprises a first and a second paper loading sections to be loaded with a stack of copying paper sheets, a first and a second paper delivery mechanism disposed respectively in the first and second paper loading sections, a first and a second paper introducing passage extending respectively from the first and second paper loading sections and terminating in a common point of junction, a paper conveying passage extending from the point of junction, a first conveyer roller pair disposed in the first paper introducing passage, and a second conveyor roller pair disposed at the point of junction or at an upstream part of the paper conveying passage. In performing a copying process, either the first or second paper delivery mechanism is selectively actuated. The first and the second conveyor roller pairs are interlocked with each other, and adapted to be started after the first or second paper delivery mechanism has been actuated. When the first paper delivery mechanism is selectively actuated, the roller pairs are started earlier by the time required to convey a copying paper from the first conveyor roller pair to the second conveyor roller pair than when the second paper delivery mechanism is actuated. The first conveyor roller pair exerts position-correcting and synchronism-adjusting actions on a copying paper delivered from the first paper loading section, and the second conveyor roller pair exerts position-correcting and synchronism-adjusting actions on a copying paper delivered from the second paper loading section.

Paper feeding device and a paper guiding device in a copying apparatus

A document size detecting device according to the invention is adapted to be mounted in an image forming device for a copying machine or the like, comprising an arm adapted to be folded and unfolded in operative association with the forward and backward movements, respectively, of the optical section of the image forming device, and a plurality of optical sensors attached to the arm at predetermined positions thereon corresponding to various format sizes of documents.

Document size detecting device

An electrostatic copying apparatus having a semiautomatic document supplying and discharging device and a sorter in addition to its main body. The main body of the apparatus comprises a rotatable photosensitive member, means for forming a latent electrostatic image on the photosensitive member, developing means, transfer means, means for conveying a copying paper, cleaning means and a heat fixing device. Various improvements have been made in the manner of controlling cleaning, the manner of controlling the delivery of a copying paper, the manner of controlling troubleshooting and display, the manner of controlling interrupting copying, the manner of controlling heating, the manner of distribution electric power, etc.

Electrostatic copying apparatus

An electrostatic copying apparatus having a semiautomatic document supplying and discharging device and a sorter in addition to its main body. The main body of the apparatus includes a rotatable photosensitive member, a device for forming a latent electrostatic image on the photosensitive member, a developer, a transfer device, a device for conveying a copying paper, a cleaner and a heat fixing device. Various improvements have been made in the manner of controlling cleaning, the manner of controlling the delivery of a copying paper, the manner of controlling troubleshooting and display, the manner of controlling interrupting copying, the manner of controlling heating, the manner of distribution electric power, etc. The heating is controlled by a parallel network of linear circuits including a temperature detector and a multi-element voltage dividing circuit, the elements of which can be switched into and out of operation to alter the sensed temperature to which the network responds.

Temperature detector

An electrostatic copying apparatus having a semiautomatic document supplying and discharging device and a sorter in addition to its main body. The main body of the apparatus includes a rotatable photosensitive member, a device for forming a latent electrostatic image on the photosensitive member, a developer, a transfer device, a device for conveying a copying paper, a cleaner and a heat fixing device. Various improvements have been made in the manner of controlling cleaning, the manner of controlling the delivery of a copying paper, the manner of controlling troubleshooting and display, the manner of controlling interrupting copying, the manner of controlling heating, the manner of distribution electric power, etc. A heat fixing device includes an electrical heater having a heat controller for controlling energization and deenergization of the heater on the basis of detected temperature. An electrical power saving unit has a manually operable power saving switch which produces a power saving signal to which the heat controller is partially responsive.

A paper feeder equipped with copying paper cassettes comprises a cassette-receiving section within the housing of a copying apparatus for mounting thereon a plurality of copying paper cassettes containing sheets of copying paper having different sizes. Each of the paper cassettes includes a main body for holding paper sheets which has an opening formed at the forward end portion of its bottom wall and a bottom plate for placing paper sheets thereon which is mounted on the bottom wall of the main body of the cassette so that it can freely pivot about its rear end portion as a fulcrum. The housing of the coyping apparatus has provided therein a press-contacting mechanism adapted to act on the bottom plate of the cassette through the opening in the main cassette body. The bottom plate of at least that paper cassete which contains sheets of copying paper having a relatively large size has a compensation piece formed therein so that the press-contacting pressure under which the uppermost paper sheet of the sheets of paper having a relatively large size is kept in press contact with a paper feeding member provided in the cassette-receiving section becomes substantially equal to the press-contacting pressure under which the uppermost paper sheet of the sheets of copying paper having a relatively small size is kept in press contact with the paper feeding member.

Paper feeder equipped with copying paper cassettes

A cleaning device for use with transfer type electrostatic copying machines wherein a wiping assembly disposed upstream of a charging-purpose corona discharger along the direction of travel of a photoreceptor is brought into slide contact with the photoreceptor during exposure to intercept residual toner particles on the photoreceptor. The wiping assembly comprises upstream and downstream members adapted to be brought into slide contact with the photoreceptor, and a pressure setting assembly for applying individual preset pressures to the two members, the arrangement being such that some of the residual toner particles are intercepted by the upstream member and then the remainder are intercepted by the downstream member.

Growing community of inventors

Habikino, Japan

Hiroshi Kimura